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You wish to prepare 239 grams of 27.4 % Co(NO3)2. You will need Assume that the density of water is 1.00 g /ml. grams of cobalt(II) nitrate and mL of water.

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Mass of Co(NO3)2-x 100 Mass of the solution Mass ofCo(NO)2 x 100 27.4 239g 27.4x 239g Mass of Co(NO, 100 -65.5g 239 g-65.5 g

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